Machine for making metal wool



Nov. 2 1926. N. PEDERSEN MACHINE FoR MAKING METAL wool.

Filed March 14, 1923 2 Sheets-Sheet' 1 N. PEDERSEN MACHINE FOR MAKING METAL WOOL 2 Shets-Sheet 2 Filed March 14. 1923 .SHN r.' Yr L.

Patented Nov. 2, 1926.

UNITED STATES PATENT OFFICE;

NIELS PEDERSEN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNO'R, BY MESNE AS- SIGNMENTS, TO ARTHUR BROCK TOOL & MANUFACTRING WORKS INCORPORATED. OF PHILADELPHIA, PENN'Y'IJV'AN'IA.I A CORPORATION OF PENNSYLVANIA.

MACHINE FOR MAKING METAL WOOL.

Application filed March 14, 1923. SeriabNo. 624,897.

My invention relates to a machine for cutting metal of the kind known as metal wool from the edges of a metal sheet passing through the machine. rIhe object of my invention is to provide a Vmachine especially adapted to handle and act on the edges of a flat and preferably thin metal sheet so as to rapidly cut from the edges of the plate a series of shavings, preferably of triangular cross section. Itis also the object of my invent-ionfto provide a machine which can be run continuously, and a series of metal sheets be fed through the machine without stopping same and Without any adjustment to the cutting tools.

The nature of my .improvements will be best understood as described in connection with the drawings in which they are illus trated and in which Figure l is a plan view of my improved machine. i V

Figure 2, a side elevation of the machine.

Figure 3, a sectional view taken as on the line 3-3 of Fig. 2. but showing the feed rolls unsectioned. i A

Figure 4 is an end view ofthe machine taken at the right hand end of Figs. l and 2.

Figure 5 is an enlargedview showing the guide plates between which the metal plate is fed.

Figure 6, a fragmentary section on the line 6 6 of Fig. l;

Figure 7, is a side elevation of my improved cutter device with its supporting and actuating mechanism.

Figure 8 is a plan view of the same mechanism.

Figure 9 is an end view on an enlarged scale` of the cutters which I employ showing how they are disposed in relation to the plate from which the shavings are cut.

Figure 10 is a fragmentary view on a still larger Scale showing the same arrange ment of cutters as shown in Fig. 9 and Figure 11 is a diagrammatic view showing a possible modification of my mecha nism.

C3, etc., the separate pairs of wheels being` intergeared by the gears D, D', D2, D, etc. so that all the shafts turn with the same speed. Secured tothe shafts are the friction feed rolls E, F, E2, E2, etc. the active faces of which may decrease in width, as indicated, with the decreasein width of the metal plate fed through the machine.V e. etc. indicate adjustingscrews by whichtho upper rolls are properly adjusted with regard Vto their co-acting lower'rolls. F, F, etc., are guides arranged' so as to contact with and hold in proper alignment the edges of the plate. passing through the machine. By preference, and as shown, these guides are made in the form of rolls which, as Shown in Fig. G. may have their bearings in the plates Gr and G 01', as indicated at fin Fig. 8, these guides may be supported on the framing whichsupports the cutters. G are the lower guide plates firmly secured to the frame of the machine as by screws g, yand G are co-acting upper guide plates whichyas shown, are provided with adjusting screws g by which their distfance'fromrthe lower guide plates G can be nicely adjusted. H, yI-I. etc. indicate the supporting frames for the cutter devices. These frames are firmly secured tol thevframe of the machine rand I-I and H2 in which are rotatably secured the shafts J which support the cutters. The arm H2 is shown as having an upward eX- tension H3 at the top of which is supported a disc I formed with an annular series of perforations z'. and keyed a series of cutters indicated at K, each series secured to one shaft J ,constituting aV group of cutters which act successively on the edge of the plate being fed through the machine so as to cut a series of shavings from the edge of the plate. By preference I arrange these cutters at dierent angles, as best shown in Figs. 9 and 10, alternate cutters having the forms indicated at K and K2 so that the plate M as it passes by these cutters has, first, cut from it a triangular shaving such as indicated at M', Fig. 9, and next a triangular shaving such as indicated at M2. The whole cutter unit is set on an angle as shown in Fig. l', to allow each cut- On the shafts .I are supported.

are formed with upwardly extendingarms Y iii) ting edge to remove a certain amount lof metal over the preceding cutting edge.

The cutter devices illustrated are designed so that cach device will embody a multiplic ity of cutters, each cutter having a multiplicity of cutting edges and arranged so that when one cutting edge becomes dull the cutter device can be indexed to another position as indicated in 'l' and S'by securing` a worm wheel L to the shaft .i engaged by a worm on shaft L which passes thi ajh the plate or disc l and has secured to its top an index handle L2 and 'a disc L3. P Lt is an'in dexing pin passing through a hole in discl L8 and engageable below this plate with the perforations i in plate I.

N, N, are conduits arranged in such relation to the vplate and the cutters acting on the plate that the shavings are collected and drawn off in these conduits.

In operation the `metal plate M is fed in between the rolls Eand E and between the guides F, F. c The plate is also fed in between the'guide plates G and` which are rshown as extending through the machine but which are only inserted between'the rolls or groups of rolls between whic i groups lay the cutters. The function of these guide plates is to hold the metal plate in correct alignment with the cutters Vand to prevent the plate from buckling under the pressure of the cutters. As the edges of the plate pass the cutter groups eachgroup of cutters cuts a series of shavings from the edge of the plate, the shavings being carried off through the conduits N and, of course, each group of cutters is arranged so as to act upon the progressively narrowing plate, as is clearly indicated in Figs. l and 2. l

As each set of cutting edges becomes dull a new and sharp set of cutting edges are turned into operative positionso'that it will be seen that my machine provides a rapid, continuous and effective operationv and large production of wool.

Having now described my invention, what I claim as new and desire to secure by Letters Patent, is:

l. A machine for making metal wool comprising in combination a series of groups of power driven friction feed rolls adapted to feed a Wide and thin flat metal plate, through the machine, a series of pairs of guide plates located between the groups of feed rolls acting to prevent buckling` of the flat plate, a series of groups of cutters located between the groups of feed rolls in position to act successively on the lateral edges of the metal plate and cut a succession of shavings therefrom and means acting on the edges of the plate for holding the metal plate in true alignment with the cutters.

2. A machine for making metal wool comprising in combination a series of groims of power driven friction feed rolls adapted to feed a flat metal plate through the machine, a series of groups of cutters located between the groups of feed rolls in positions to act successively on the edge ofthe metal plate, and each cutter group being made up of cutters alternately set at different angles and so that each will cut a triangular shav- `ing from the edge of the plate, and means for holding the metal plate in true alignment with the cutters'.

8. A machine for making metal wool comprising in combination a series of groups of power driven friction feed rolls adapted to feed a i'latmetal plate, through the machine, cutter devices each comprising a multiple series of cutter groups which groups can be successively adjusted to operative position, said cutter devices located between groups of feed rolls in position to enable the operative group of cutters to act on the edge of the plate passing through the machine and means for holding the metal plate fed through the machine in proper alignment with the cutter groups.

NIELS PEDERSEN.

lill 

